scholarly journals Sorghum [Sorghum bicolor (L.) Moench] seed quality as affected by variety, harvesting stage and fertilizer application in Bomet County of Kenya

2013 ◽  
Vol 13 (59) ◽  
pp. 7905-7926
Author(s):  
LA Ochieng ◽  
◽  
PW Mathenge ◽  
R Muasya ◽  
◽  
...  
Keyword(s):  
Sorghum Bicolor ◽  
Seed Weight ◽  
Management Practices ◽  
Seed Quality ◽  
Block Design ◽  
Fertilizer Application ◽  
Seed Selection ◽  
Seed Vigour ◽  
Field Emergence ◽  
Sorghum Bicolor L

A set of laboratory experiments were conducted to evaluate the physiological quality of Sorghum bicolor (L.) Moench seeds subjected to different field cultural management practices. The main aim of this study was to contribute towards improved production of Sorghum bicolor (L.) Moench through better understanding of the crop’s agronomy. The experimental design was a three factorial split-split block design in the rain fed Sorghum bicolor (L.) Moench producing areas of Bomet County of Kenya. Treatments within the block were randomized. There were three factors which included variety at two levels (improved and local varieties); fertilizer application at two levels (with and without fertilizer); and seed selection at three levels (continuous, from booting stage and at harvest). Percentages of crop emergence and days to 50% physiological maturity were determined. The following seed quality tests were carried out: 1000-seed weight, standard germination, mean germination time and electrical conductivity. The improved variety had a field emergence of 100% while that of the local variety ranged from 60 - 97%. In regard to field emergence and maturity, there were significance differences (P≤ 0.001) between plots with fertilizer and those without regardless of the variety. Those plots with fertilizer outperformed those without. Germination and vigour tests indicated that seed selection time did not influence seed vigour, viability and yield (P ≤ 0.05). However, there were significant differences (P ≤ 0.001) between the improved variety (E1291) and local (Ochuti) variety. In relation to this, variety E1291 showed better seed vigour, viability and yield as compared to Ochuti. Similarly, there were significant differences (P ≤ 0.001) between plots to which fertilizer was applied and those without. Fertilizer application led to an increase in seed yield, seed weight, seed vigour and viability. It was therefore concluded that (i) E1291 was more adapted to the study area as compared to Ochuti and hence should be adopted by farmers; (ii) farmers should apply optimal phosphate and nitrogenous fertilizers to their soils so as to increase the quality and yield of their seed; and (iii) farmers could continue selecting their seed using their indigenous knowledge.

scholarly journals MOISTURE CONTENT AND VARIETY OF JUTE SEED IS AFFECTED BY LONG TERM SEED STORAGE

2020 ◽  
Vol 5 (1) ◽  
pp. 24-28
Author(s):  
Md. Zablul Tareq ◽  
Arif Mohammad Mojakkir ◽  
Mir Mehedi Hasan ◽  
Md. Jewel Alam ◽  
Md. Abu Sadat
Keyword(s):  
Seed Germination ◽  
Moisture Content ◽  
Seed Weight ◽  
Crop Production ◽  
Seed Quality ◽  
Storage Period ◽  
Seed Vigour ◽  
Storage Container ◽  
Field Emergence ◽  
Healthy Seed

Seed perform a vital role in agricultural sector for crop production as well as seed business. Scarcity of healthy seed hinder not only the crop production but also the quality of seed. Storing of healthy seed with proper storing condition is one of the suitable methods to maximize production however, healthy seed also lose its quality during seed storage. Seed remains viable for long time if the seed stored by maintaining seed moisture content, storage temperature with storage container. So, this experiment was carried out to observe the quality parameters of jute seed during long term storing. To find out the storage effect an experiment was conducted on march, 2020 at seed laboratory, Jute Agriculture Experimental Station, Jagir, Manikganj, Bangladesh during the period of January 2016 to March, 2020. Plastic pot was used in this experiment as a storage container to store jute seeds. Three tossa jute (C. olitorius L.) varieties viz., O-795 (V1), O-9897 (V2) and OM-1 (V3) were used in this study. Result revealed that storage period and jute variety showed significant effect on different seed quality parameters. The highest seed germination, field emergence, seed vigour and the lowest 1000-seed weight, moisture content were recorded in T5 (2019-20) treatment. On the other hand, the lowest seed germination, field emergence, seed vigour and the highest 1000-seed weight, moisture content were recorded in T1 (2015-2016) treatment. Furthermore, seed germination, field emergence, seed vigour was negatively but 1000-seed weight was positively correlate with moisture content. Results revealed that extended storage period caused the decreasing seed quality and seed can be stored for three years in plastic container without hampering the seed quality.

scholarly journals Defining Fertilization Strategies for Sorghum (Sorghum bicolor (L.) Moench) Production Under Sudano-Sahelian Conditions: Options for Late Basal Fertilizer Application

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 697
Author(s):  
Komla Ganyo ◽  
Bertrand Muller ◽  
Malick Ndiaye ◽  
Espoir Gaglo ◽  
Aliou Guissé ◽  
...  
Keyword(s):  
Grain Yield ◽  
Sorghum Bicolor ◽  
Field Experiments ◽  
Rainfall Variability ◽  
Block Design ◽  
Fertilizer Application ◽  
Yield Potential ◽  
Cycle Duration ◽  
Stem Extension ◽  
Sorghum Bicolor L

Soil nutrient deficiency and rainfall variability impair the production of sorghum (Sorghum bicolor (L). Moench) in Sudano-Sahelian zone. The aim is to study the environmental factors that can determine the effect of fertilizer application on sorghum grain yield and to formulate tailored fertilization strategies according to sorghum varieties (hybrid and open pollinated improved varieties) and environmental context. Field experiments were conducted during the 2015 and 2016 growing seasons in Nioro du Rip and in Sinthiou Malème (Senegal). In a randomized complete block design arranged in a split-plot with four replications, three factors were tested: sorghum genotype (G: Fadda, Faourou, Soumalemba and Soumba with different cycle lengths), environment (E: irrigation and rainfed, different soil types and fertility levels), and fertilization management (M: five different combinations of application dose and application time) including T1 = no fertilizer applied; T2 (recommended practice, 100%) = 150 kg/ha of NPK (15-15-15) at emergence + 50 Kg/ha of urea (46%) at tillering + 50 kg/ha of urea at stem extension; T3 = 50% T2; T4 (100% delay) = 150 kg/ha of NPK +50 kg/ha of urea at stem extension +50 kg/ha of urea at heading ; T5 = 50% T4. Results showed that: (i) in most environments, stressed plants under late application treatments (T4 and T5) recovered biomass once the fertilizer was applied (ii); grain yield with T5 was higher than with T4 under well-watered conditions (sufficient and well distributed rainfall and eventual complementary irrigations) ; (iii) Fadda, a hybrid, responded differently to fertilization than the other varieties only for biomass production, (iv) late fertilizer application treatment (T4) gave higher grain yield than the recommended practice (T2) in the environment with low yield potential, and (v) long cycle duration genotypes benefited better from late fertilization compared to short cycle duration genotypes. This study showed that under Sudano-Sahelian conditions late fertilization of sorghum can be beneficial to grain yield if the rainy season has a slow start, depending on sorghum genotypes (i.e., cycle length), and on the initial N content of the soil.

scholarly journals Constraints to On-Farm Maize (Zea mays L.) Seed Production in Western Kenya: Plant Growth and Yield

ISRN Agronomy ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
P. W. Wambugu ◽  
P. W. Mathenge ◽  
E. O. Auma ◽  
H. A. vanRheenen
Keyword(s):  
Seed Production ◽  
Production System ◽  
Seed Weight ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Seed Vigour ◽  
Local Varieties ◽  
Western Kenya ◽  
On Farm ◽  
100 Seed Weight

Studies have shown that that about 85% of maize farmers in Western Kenya plant local varieties with about 80% using own farm-saved seeds. The production system is characterized by late harvesting, heavy striga infestation, use of local varieties, and low-soil fertility. The objective of this study was to test an on-farm seed production system which would help improve yield and quality of farm saved seeds. The trials were set up in a factorial design fitted as random complete block design. There were 3 factors each at 2 levels: time of harvest, variety choice, and fertilizer application. Fertilizer application led to an 88% increase in yield, 54% increase in number of seeds per cob, and 14% increase in 100-seed weight. Fertilizer application also led to an increase in seed vigour and viability. Yield differences between the 2 varieties were not significant. The correlation between 100-seed weight and seed vigour was significant showing that heavy seeds were more vigourous. Nitrogen application was therefore recommended for increasing yields and for producing vigourous seeds but should be done with caution to avoid lodging as witnessed. This study also noted that farmers are rational and their decisions are usually based on strong economic considerations.

scholarly journals RESPON HASIL TANAMAN SORGUM (Sorghum bicolor L. Moench) TERHADAP PUPUK ORGANIK CAIR DAN JARAK TANAM DI JATINANGOR JAWA BARAT

Agrin ◽  
2019 ◽  
Vol 22 (2) ◽  
pp. 160
Author(s):  
Ruminta Ruminta ◽  
Agus Wahyudin ◽  
Aditya Ramdani
Keyword(s):  
Sorghum Bicolor ◽  
Harvest Index ◽  
Block Design ◽  
Organic Fertilizer ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Climate Type ◽  
Field Station ◽  
Single Effect ◽  
Sorghum Bicolor L

Tujuan penelitian adalah mempelajari pengaruh interaksi antara dosis pupuk organik cair dan jarak tanamterhadap pertumbuhan dan hasil tanaman sorgum (Sorghum bicolor L. Moench). Penelitian dilakukan di StasiunLapangan Fakultas Pertanian, Universitas Padjadjaran, Jatinangor Jawa Barat. Lokasi ini memiliki ketinggiansekitar 760 meter di atas permukaan laut, tipe tanah inseptisol dan tipe iklim Oldeman C3 pada tahun 2012.Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan pola faktorial, dua faktor perlakuan dantiga ulangan. Faktor pertama adalah dosis pupuk organik cair yang terdiri dari tiga taraf: 1,5 l / ha; 3 l / ha; dan 6l / ha. Faktor kedua adalah jarak tanam yang terdiri dari tiga taraf: 25 cm x 25 cm; 50 cm x 25 cm; dan 75 cm x 25cm. Pengamatan terdiri dari komponen hasil dan hasil tanaman sorgum. Hasil penelitian ini menunjukkan bahwaantara jarak tanam dan dosis pupuk cair memberikan efek interaksi terhadap berat malai sorgum. Perlakuan pupukorganik cair dengan dosis 6 l / ha dan jarak tanam pada level 50 cm x 25 cm memberikan efek terbaik terhadapberat malai sorgum (94,90 g). Pengaruh mandiri jarak tanam pada level 50 cm x 25 cm memberikan hasil terbaikterhadap bobot biji per tanaman (71,31 g). Perlakuan pupuk organik cair dan jarak tanam memberikan efek yangsama terhadap panjang malai, berat 1000 butir, persentase bobot biji per tanaman, indeks panen, dan hasil perlahan.Kata kunci: pupuk organik cair, jarak tanam, hasil, sorgumABSTRACTThe objective of research was to study the effect of interaction between dosage of liquid organic fertilizerand plant spacing on growth and yield of Sorghum (Sorghum bicolor L. Moench). Research was carried out atAgriculture Faculty Field Station, Padjadjaran University, Jatinangor West Java. The site has an altitude about760 meter above sea level, inceptisols soil type and C3 climate type of Oldeman in 2012. The experiment used aRandomized Block Design (RBD) with factorial pattern, two factor of treatment and three replications. The Firstfactor was dosage of liquid organic fertilizer which consist of three levels: 1,5 l/ha; 3 l/ha; dan 6 l/ha. The Secondfactor was plant spacing consist of three levels: 25 cm x 25 cm; 50 cm x 25 cm; and 75 cm x 25 cm. Observationsconsist of components of yield and yield of sorghum plants. The results of this experiment showed that betweenplant spacing and dosage of liquid fertilizer give an interaction effect to panicle weight of sorghum. Treatment ofliquid organic fertilizer at dosage 6 l/ha and plant spacing at level 50 cm x 25 cm gave the best effects on panicleweight sorgum (94,90 g). Single effect treatment of plant spacing at level 50 cm x 25 cm gave the best result tograin weight per plant (71,31 g). Treatment of liquid organic fertilizer and plant spacing give the same effect topanicle length, weight of 1000 grain, percentage of kernels weight per plant, harvest index, and yield per field.Key words: liquid organic fertilizer, plant space, yield, sorgum

scholarly journals Changes in Chlorophyll and Protein Contents of Vigna unguiculata, Glycine max, Zea mays and Sorghum bicolor Raised in Soil Incorporated with the Shoots of Tithonia rotundifolia

2020 ◽  
pp. 33-39
Author(s):  
O. J. Ilori ◽  
O. O. Otusanya
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Sorghum Bicolor ◽  
Vigna Unguiculata ◽  
Zea Mays L ◽  
Block Design ◽  
Protein Accumulation ◽  
Total Chlorophyll ◽  
Chlorophyll Contents ◽  
Sorghum Bicolor L

Tithonia. rotundifolia is an allelopathic weed that grows in association with cultivated crops in Nigeria. Allelopathy is a phenomenon of plant releasing allelochemicals into the environment that can inhibit or stimulate the growth of other plants and microorganisms. This study aimed to evaluate the effects of soil incorporated with the fresh shoots of T. rotundifolia on chlorophyll and protein accumulation of Vigna unguiculata L. Glycine max L., Zea mays L. and Sorghum bicolor L.  250 g of fresh shoots of T. rotundifolia were worked into each plot of 2 m2 dimension and the test crops were sown in the plots. Plots with no T. rotundifolia shoots were included as control plots. The experiment was performed in completely randomized block design (CRBD). The parameters measured were chlorophyll a, chlorophyll b total chlorophyll and protein content. The results showed a stimulation in chlorophyll contents in the test crops except inhibition in chl b and total chlorophyll in Zea mays L. Also, there was a stimulation of protein in Zea mays L. and Sorghum bicolor L. The study suggests that incorporation of shoots of Tithonia rotundifolia could imparts stimulatory allelopathic effects.

scholarly journals Response of Cowpea (Vigna unguiculata L. Walp) to Time of Application and Nitrogen Fertilizer on the Degraded Soil of Southern Guinea Savanna Zone of Nigeria

2020 ◽  
pp. 36-42
Author(s):  
E. Ndor ◽  
U. D. Faringoro
Keyword(s):  
Nitrogen Fertilizer ◽  
Seed Weight ◽  
Root Nodules ◽  
Block Design ◽  
Field Trials ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Time Of Application ◽  
Significant Difference ◽  
Fertilizer Rates

Field trials were conducted during 2017 and 2018 rainy season, to investigate the effect of nitrogen fertilizer rates and time of application on the growth and yield of cowpea. The treatment consisted of three levels of urea: 0, 40, 80 kg N ha-1 and the times of fertilizer application: during planting of cowpea, 2 weeks after planting, 4 weeks after planting and 6 weeks after planting; which were factorially combined to form twelve treatments and laid in Randomized Complete Block Design (RCBD). The results showed that, Nitrogen fertilizer rates and time of application had a significant increased on all the growth and yield parameters of cowpea in both years of trials. Application of 80 kg N ha-1 produced the highest number of cowpea leaves (134.45 and 139.23), number of branches (9.45 and 10.54), vine length (78.23cm and 80.12cm) and highest seed weight of 0.52 t ha-1 in both 2017 and 2018 trials. However, the control plots produced plants with the highest number of root nodules (14.78 and 12.49) in both years of cropping. Also, application of nitrogen fertilizer at two weeks after planting of cowpea produced the highest growth and seed weight of 0.68 t ha-1 in 2017 cropping; while in 2018 trial, application of nitrogen fertilizer at two weeks after cowpea planting produced seed yield of 0.69tha-1 which is statistically similar with application of nitrogen fertilizer on the fourth week after planting which produced 0.55 t ha-1 of cowpea seeds. The interaction between nitrogen fertilizer application rates and time of application did not showed any significant difference in cowpea yield and yield components in both years of cropping.

scholarly journals PENGARUH PENAMBAHAN PUPUK MIKRO DAN BEBERAPA GENOTIPE SORGUM (Sorghum bicolor (L.) Moench) TERHADAP INTENSITAS PENYAKIT ANTRAKNOSA (Colletotrichum sp.) DI LAHAN PETANI TANJUNG BINTANG LAMPUNG SELATAN

2020 ◽  
Vol 8 (2) ◽  
pp. 347
Author(s):  
Farastika Unjunan Muli ◽  
Efri Efri ◽  
Muhammad Syamsoel Hadi ◽  
Radix Suharjo
Keyword(s):  
Sorghum Bicolor ◽  
Block Design ◽  
Plant Diseases ◽  
The Other ◽  
Anthracnose Disease ◽  
Randomized Block Design ◽  
Main Plot ◽  
Sorghum Genotypes ◽  
Sorghum Bicolor L ◽  
Plot Design

One of the diseases that often found in sorghum plants is anthracnose disease caused by Colletotrichum sp. The purposed of this study was to determine the effect of adding micro fertilizer and the use of several sorghum genotypes on the intensity of anthracnose disease. The study was conducted in Sukanegara, Tanjung Bintang, South Lampung in April 2017 - February 2018 and at the Laboratory of Plant Diseases and Pests, Faculty of Agriculture, University of Lampung. The treatments were arranged using a randomized block design in a split plot design (3 times replications), the main plot was micro nutrients (with micro addition and without micro addition) and 15 subgroups of sorghum genotypes (Numbu, Samurai 1, GH3, UPCA, GH4, P / I WHP, GH6, Super 2, GH13, P / F 51-93-C, Super 1, GH5, Mandau, GH7, and Talaga Bodas). The results showed that the addition of "ZincMicro" micro fertilizers to sorghum plants did not affect the intensity of anthracnose disease, however there were differences in the intensity of anthracnose diseases between sorghum genotypes. Numbu Genotype, GH 3, and GH 13 were relatively more resistant to anthracnose disease than the other genotypes.

scholarly journals Impact of management practices on Italian ryegrass seed quality

2010 ◽  
Vol 55 (2) ◽  
pp. 131-140
Author(s):  
Aleksandar Simic ◽  
Savo Vuckovic ◽  
Branko Cupina ◽  
Djordje Krstic ◽  
Rade Stanisavljevic ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Seed Weight ◽  
Management Practices ◽  
Field Experiments ◽  
Seed Quality ◽  
Italian Ryegrass ◽  
Considerable Influence ◽  
Nitrogen Rates ◽  
Thousand Seed Weight

Thousand-seed weight and total germination from the first production year and two seed harvests were measured in tetraploid Italian ryegrass (cv. Tetraflorum) to study variations in seed quality. Four-year field experiments were carried out (2002-2006) in western Serbia and Italian ryegrass was established with three row spacings (20, 40 and 60 cm), four seeding rates (5, 10, 15 and 20 kg ha-1) and using four spring nitrogen rates (0, 50, 100 and 150 kg ha-1). High seed quality was obtained, except for the first experimental year (2003) and the second seed harvests which yielded the seed of unsatisfactory quality and validity. Applied factors and treatments did not change seed quality significantly unlike environmental conditions of production years which had considerable influence on seed quality.

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